Backpack frame bracket



FIG. 1 is a perspective view of a backpack frame bracket showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view, the right side is a mirror image of the left side elevational view;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a backpack frame bracket, as shown and described. 